| Base | Representation |
|---|---|
| bin | 1011101101001101101… |
| … | …01111111011110100100 |
| 3 | 1102110020011211112000000 |
| 4 | 11312212311333132210 |
| 5 | 23042232132130040 |
| 6 | 504441001021300 |
| 7 | 41026443123156 |
| oct | 5664665773644 |
| 9 | 1373204745000 |
| 10 | 402231130020 |
| 11 | 145648a94405 |
| 12 | 65b56484830 |
| 13 | 2bc1294c115 |
| 14 | 1567a624ad6 |
| 15 | a6e2714130 |
| hex | 5da6d7f7a4 |
402231130020 has 168 divisors, whose sum is σ = 1287916701120. Its totient is φ = 105443415360.
The previous prime is 402231130013. The next prime is 402231130027. The reversal of 402231130020 is 20031132204.
402231130020 is a `hidden beast` number, since 402 + 231 + 1 + 30 + 0 + 2 + 0 = 666.
It is an interprime number because it is at equal distance from previous prime (402231130013) and next prime (402231130027).
It is a super-2 number, since 2×4022311300202 (a number of 24 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a junction number, because it is equal to n+sod(n) for n = 402231129975 and 402231130002.
It is not an unprimeable number, because it can be changed into a prime (402231130027) by changing a digit.
It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 626425 + ... + 1094015.
It is an arithmetic number, because the mean of its divisors is an integer number (7666170840).
Almost surely, 2402231130020 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 402231130020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (643958350560).
402231130020 is an abundant number, since it is smaller than the sum of its proper divisors (885685571100).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
402231130020 is a wasteful number, since it uses less digits than its factorization.
402231130020 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 467677 (or 467660 counting only the distinct ones).
The product of its (nonzero) digits is 288, while the sum is 18.
Adding to 402231130020 its reverse (20031132204), we get a palindrome (422262262224).
The spelling of 402231130020 in words is "four hundred two billion, two hundred thirty-one million, one hundred thirty thousand, twenty".
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